EP3417532B1 - Agencement de refroidissement d'une machine électrique - Google Patents

Agencement de refroidissement d'une machine électrique Download PDF

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Publication number
EP3417532B1
EP3417532B1 EP17753572.1A EP17753572A EP3417532B1 EP 3417532 B1 EP3417532 B1 EP 3417532B1 EP 17753572 A EP17753572 A EP 17753572A EP 3417532 B1 EP3417532 B1 EP 3417532B1
Authority
EP
European Patent Office
Prior art keywords
housing
stator winding
temperature
cooling fluid
flow rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17753572.1A
Other languages
German (de)
English (en)
Other versions
EP3417532A1 (fr
EP3417532A4 (fr
Inventor
Jörgen Engström
Stefan Karlsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scania CV AB
Original Assignee
Scania CV AB
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Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Publication of EP3417532A1 publication Critical patent/EP3417532A1/fr
Publication of EP3417532A4 publication Critical patent/EP3417532A4/fr
Application granted granted Critical
Publication of EP3417532B1 publication Critical patent/EP3417532B1/fr
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25—Devices for sensing temperature, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/60—Controlling or determining the temperature of the motor or of the drive
    • H02P29/64—Controlling or determining the temperature of the winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/24—Devices for sensing torque, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the control unit may have access to stored information about suitable flow rates at different temperatures of the stator winding.
  • the control unit may receive information of the temperature of the stator winding substantially continuously.
  • the control unit controls the pump such that the flow rate is adjusts to the desired value. In this case, it is possible to provide an effective cooling of the stator winding when the electrical machine is high loaded and save pump energy when the electrical machine is low loaded.
  • Oil is supplied with a positive pressure, via an inlet hole 10 in the housing 2, to the oil channel 8.
  • the oil channel 8 comprises a number of outlet ducts 9 in the mantle 6c. Oil is sprayed, via the outlet ducts 9, towards a number of portions of the stator winding 6b located at an upper half of the stator 6.
  • the housing 2 comprises a drainage hole 11 located at a lowermost position of the housing 2.
  • the drainage hole 11 is, via a drain line 12, connected to an oil receiver 13.
  • a pump 14 pumps oil from the oil receiver 13, via an oil line 15, to the oil channel 8 in the housing 2.
  • the oil line 15 comprises a thermostat 16.
  • the thermostat 16 directs the oil to the housing 2 without cooling.
  • the thermostat 16 directs the oil to a cooler 17 before it is directed to the housing 2.
  • a control unit 18 is configured to control the speed of the pump 14 and the flow rate of the oil pumped to the housing 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Claims (8)

  1. Agencement pour le refroidissement d'une machine électrique (3), dans lequel la machine électrique (3) comprend un rotor (5) agencé de manière rotative autour d'un axe de rotation (4a), un stator (6) comportant un enroulement de stator (6b) agencé radialement à l'extérieur du rotor (5), un boîtier (2) renfermant le rotor (5) et le stator (6), au moins un orifice de vidange (11) configuré pour vidanger un fluide de refroidissement du boîtier (2), au moins un dispositif de pulvérisation (8-10) configuré pour pulvériser du fluide de refroidissement sur l'enroulement de stator (6b) et une pompe (14) configurée pour pomper du fluide de refroidissement vers le boîtier (2), dans lequel l'agencement comprend une unité de commande (18) qui est configurée, lorsque la machine électrique (3) est en fonctionnement, pour recevoir des informations de la température dans au moins une position de l'enroulement de stator (6b) et pour commander la pompe (14) de telle sorte qu'elle fournisse un débit du fluide de refroidissement vers boîtier (2) en fonction de la température de l'enroulement de stator (6b) et d'un débit créant un niveau de fluide de refroidissement (L) dans le boîtier (2) lié à la température de l'enroulement de stator (6b), dans lequel la pompe (14) est configurée, à une première température de l'enroulement de stator (6b), pour fournir un débit créant un niveau de fluide de refroidissement (L) dans le boîtier (2) auquel le fluide de refroidissement recouvre au moins une partie d'une portion située le plus bas de l'enroulement de stator (6b), dans lequel la pompe (14) est configurée, à une seconde température de l'enroulement de stator (6b) qui est supérieure à la première température, pour fournir un débit créant un niveau de fluide de refroidissement (L) dans le boîtier (2) auquel le fluide de refroidissement vient en contact avec le rotor (5), caractérisé en ce que la pompe (14) est configurée, à une troisième température de l'enroulement de stator (6b) qui est inférieure à la première température, pour fournir un débit créant un niveau sensiblement nul de fluide de refroidissement (L) dans le boîtier (2), de telle sorte que le débit de fluide de refroidissement vers le boîtier (2) est inférieur à la capacité de débit de l'orifice de vidange (11) .
  2. Agencement selon la revendication 1, caractérisé en ce que ladite pompe (14) est capable de régler le débit d'une manière sensiblement continue.
  3. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (18) est configurée pour commander la pompe (14) de telle sorte qu'elle pompe un débit vers le boîtier (2) afin de maintenir une température de l'enroulement de stator (6b) dans une plage de température prédéterminée.
  4. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un capteur de température (15) configuré pour détecter la température des enroulements de stator (6b).
  5. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (18) est configurée pour recevoir des informations (20) concernant au moins un paramètre de fonctionnement de la machine électrique (3) et pour déterminer la température de l'enroulement de stator (6b) au moyen de ce paramètre de fonctionnement.
  6. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de pulvérisation (8-10) est configuré pour pulvériser du fluide de refroidissement sur une portion de l'enroulement de stator (6b) agencée au niveau d'une moitié supérieure du stator (6).
  7. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (18) est configurée pour commander la pompe (14), lorsque la machine électrique (3) est hors service, de telle sorte qu'elle pompe un débit vers le boîtier (2) auquel un niveau sensiblement nul de fluide de refroidissement (L) est créé dans le boîtier (2).
  8. Véhicule comprenant un agencement selon l'une quelconque des revendications précédentes 1 à 7.
EP17753572.1A 2016-02-19 2017-02-07 Agencement de refroidissement d'une machine électrique Active EP3417532B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1650215A SE539839C2 (sv) 2016-02-19 2016-02-19 An arrangement for cooling of an electrical machine
PCT/SE2017/050111 WO2017142457A1 (fr) 2016-02-19 2017-02-07 Agencement de refroidissement d'une machine électrique

Publications (3)

Publication Number Publication Date
EP3417532A1 EP3417532A1 (fr) 2018-12-26
EP3417532A4 EP3417532A4 (fr) 2019-09-11
EP3417532B1 true EP3417532B1 (fr) 2022-06-15

Family

ID=59626192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17753572.1A Active EP3417532B1 (fr) 2016-02-19 2017-02-07 Agencement de refroidissement d'une machine électrique

Country Status (7)

Country Link
US (1) US11296580B2 (fr)
EP (1) EP3417532B1 (fr)
KR (1) KR20180111960A (fr)
CN (1) CN108702063B (fr)
BR (1) BR112018014653B1 (fr)
SE (1) SE539839C2 (fr)
WO (1) WO2017142457A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3080506B1 (fr) * 2018-04-20 2021-03-19 Renault Sas Dispositif de refroidissement de machine electrique et machine electrique comprenant un tel dispositif
FR3083033B1 (fr) * 2018-06-22 2020-05-29 Renault S.A.S Machine electrique refroidie par un liquide caloporteur dielectrique
JP2022168480A (ja) * 2021-04-26 2022-11-08 トヨタ自動車株式会社 磁石温度推定装置

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
WO1999032770A1 (fr) * 1997-12-20 1999-07-01 Alliedsignal Inc. Mise en memoire des pics de pression de l'air evacue du compresseur pour une purge prolongee des injecteurs de carburant d'un systeme de generation d'energie de microturbine
JPH11318055A (ja) 1998-05-07 1999-11-16 Toyota Motor Corp 回転電機の冷却制御装置及び冷却制御方法
DE19824202C1 (de) 1998-05-29 1999-09-30 Siemens Ag Flüssigkeitsgekühlte elektrische Innenläufermaschine
JP3661529B2 (ja) * 1999-11-17 2005-06-15 日産自動車株式会社 モータの冷却装置
US7002267B2 (en) * 2004-03-22 2006-02-21 General Motors Corporation Method and apparatus for cooling a hybrid transmission electric motor
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JP5811665B2 (ja) 2011-07-28 2015-11-11 トヨタ自動車株式会社 回転電気
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Also Published As

Publication number Publication date
SE539839C2 (sv) 2017-12-19
US11296580B2 (en) 2022-04-05
CN108702063B (zh) 2021-04-02
EP3417532A1 (fr) 2018-12-26
BR112018014653A2 (pt) 2018-12-11
WO2017142457A1 (fr) 2017-08-24
CN108702063A (zh) 2018-10-23
EP3417532A4 (fr) 2019-09-11
BR112018014653B1 (pt) 2023-02-28
KR20180111960A (ko) 2018-10-11
US20200389072A1 (en) 2020-12-10
SE1650215A1 (en) 2017-08-20

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